Add simple RBS signatures for generated files

.gitignore

@@ -9,3 +9,4 @@
 /tmp/
 /node_modules
 /vendor
+/.gem_rbs_collection/

Gemfile

@@ -8,3 +8,4 @@ gemspec
 gem "benchmark-ips"
 gem "pry-byebug"
 gem "activesupport"
+gem "steep", require: false

Steepfile

@@ -0,0 +1,17 @@
+D = Steep::Diagnostic
+
+target :lib do
+  signature "sig"
+
+  check "lib"                       # Directory name
+
+  # configure_code_diagnostics(D::Ruby.default)      # `default` diagnostics setting (applies by default)
+end
+
+# target :test do
+#   signature "sig", "sig-private"
+#
+#   check "test"
+#
+#   # library "pathname"              # Standard libraries
+# end

language_server-protocol.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/mtsmfm/language_server-protocol-ruby"
   spec.license       = "MIT"
 
-  spec.files         = `git ls-files -z lib LICENSE.txt README.md`.split("\x0")
+  spec.files         = `git ls-files -z lib sig LICENSE.txt README.md`.split("\x0")
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]

rbs_collection.lock.yaml

@@ -0,0 +1,172 @@
+---
+path: ".gem_rbs_collection"
+gems:
+- name: abbrev
+  version: '0'
+  source:
+    type: stdlib
+- name: activesupport
+  version: '7.0'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: ast
+  version: '2.4'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: base64
+  version: '0'
+  source:
+    type: stdlib
+- name: bigdecimal
+  version: '0'
+  source:
+    type: stdlib
+- name: concurrent-ruby
+  version: '1.1'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: connection_pool
+  version: '2.4'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: csv
+  version: '0'
+  source:
+    type: stdlib
+- name: date
+  version: '0'
+  source:
+    type: stdlib
+- name: erb
+  version: '0'
+  source:
+    type: stdlib
+- name: fileutils
+  version: '0'
+  source:
+    type: stdlib
+- name: forwardable
+  version: '0'
+  source:
+    type: stdlib
+- name: i18n
+  version: '1.10'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: json
+  version: '0'
+  source:
+    type: stdlib
+- name: listen
+  version: '3.2'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: logger
+  version: '0'
+  source:
+    type: stdlib
+- name: minitest
+  version: '0'
+  source:
+    type: stdlib
+- name: monitor
+  version: '0'
+  source:
+    type: stdlib
+- name: mutex_m
+  version: '0'
+  source:
+    type: stdlib
+- name: optparse
+  version: '0'
+  source:
+    type: stdlib
+- name: parser
+  version: '3.2'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: pathname
+  version: '0'
+  source:
+    type: stdlib
+- name: rainbow
+  version: '3.0'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: rake
+  version: '13.0'
+  source:
+    type: git
+    name: ruby/gem_rbs_collection
+    revision: 438153d157e1e1ed6b640da973e33f333e57e6d9
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    repo_dir: gems
+- name: rbs
+  version: 3.4.4
+  source:
+    type: rubygems
+- name: rdoc
+  version: '0'
+  source:
+    type: stdlib
+- name: securerandom
+  version: '0'
+  source:
+    type: stdlib
+- name: singleton
+  version: '0'
+  source:
+    type: stdlib
+- name: steep
+  version: 1.6.0
+  source:
+    type: rubygems
+- name: strscan
+  version: '0'
+  source:
+    type: stdlib
+- name: time
+  version: '0'
+  source:
+    type: stdlib
+- name: timeout
+  version: '0'
+  source:
+    type: stdlib
+- name: tsort
+  version: '0'
+  source:
+    type: stdlib
+gemfile_lock_path: Gemfile.lock

rbs_collection.yaml

@@ -0,0 +1,19 @@
+# Download sources
+sources:
+  - type: git
+    name: ruby/gem_rbs_collection
+    remote: https://github.com/ruby/gem_rbs_collection.git
+    revision: main
+    repo_dir: gems
+
+# You can specify local directories as sources also.
+# - type: local
+#   path: path/to/your/local/repository
+
+# A directory to install the downloaded RBSs
+path: .gem_rbs_collection
+
+gems:
+  # If you want to avoid installing rbs files for gems, you can specify them here.
+  - name: language_server-protocol
+    ignore: true

scripts/generateFiles.ts

@@ -267,6 +267,40 @@ Handlebars.registerHelper("isliteral", (s: string) => {
   return s.match(/'.*'/) || s.match(/".*"/) || s.match(/\d+/);
 });
 
+
+
+const typeMapping = new Map<string, string>([
+  ["string", "String"],
+  ["number", "Integer"],
+  ["boolean", "bool"],
+  ["null", "nil"],
+  ["undefined", "nil"],
+  ["any", "untyped"],
+  ["LSPAny", "untyped"],
+]);
+
+const convertTypeToRbs: ((type: string) => string) = (type) => {
+  if (type.endsWith("[]")) {
+    return `Array[${convertTypeToRbs(type.slice(0, -2))}]`;
+  }
+  let rbsType = typeMapping.get(type);
+  if (rbsType != null) {
+    return rbsType;
+  }
+
+  return "untyped";
+};
+
+Handlebars.registerHelper("method_signature", (members: InterfaceResult["members"]) => {
+  return members
+    .map(
+      (member) =>
+        `${member.optional ? "?" : ""}${snake(member.name)}: ${convertTypeToRbs(member.type)}${member.nullable ? "?" : ""}`
+    )
+    .join(", ");
+});
+Handlebars.registerHelper("convertTypeToRbs", convertTypeToRbs);
+
 (async () => {
   const data = globSync(
     path.join(
@@ -369,6 +403,45 @@ end
     );
   });
 
+  interfaces.forEach((definition) => {
+    createFile(
+      path.join(
+        rootDir,
+        "sig",
+        "language_server",
+        "protocol",
+        "interface",
+        `${snake(definition.interface.name)}.rbs`
+      ),
+      Handlebars.compile(
+        `
+module LanguageServer
+  module Protocol
+    module Interface
+      {{#if definition.interface.documentation}}
+      #
+{{comment definition.interface.documentation indent=6}}
+      #
+      {{/if}}
+      class {{definition.interface.name}}
+        def initialize: ({{method_signature definition.allMembers}}) -> void
+
+        @attributes: Hash[Symbol, untyped]
+        attr_reader attributes: Hash[Symbol, untyped]
+
+        def to_hash: () -> Hash[Symbol, untyped]
+
+        def to_json: (*untyped) -> String
+      end
+    end
+  end
+end
+`.slice(1),
+        { noEscape: true }
+      )({ definition })
+    );
+  });
+
   modules.forEach((definition) => {
     createFile(
       path.join(
@@ -412,6 +485,49 @@ end
     );
   });
 
+  modules.forEach((definition) => {
+    createFile(
+      path.join(
+        rootDir,
+        "sig",
+        "language_server",
+        "protocol",
+        "constant",
+        `${snake(definition.module.name)}.rbs`
+      ),
+      Handlebars.compile(
+        `
+module LanguageServer
+  module Protocol
+    module Constant
+      {{#if definition.module.documentation}}
+      #
+{{comment definition.module.documentation indent=6}}
+      #
+      {{/if}}
+      module {{definition.module.name}}
+        {{#each definition.members}}
+        {{#if documentation}}
+        #
+{{comment documentation indent=8}}
+        #
+        {{/if}}
+        {{#if (isliteral value)}}
+        {{const name}}: {{value}}
+        {{else}}
+        {{const name}}: {{convertTypeToRbs type}}
+        {{/if}}
+        {{/each}}
+      end
+    end
+  end
+end
+`.slice(1),
+        { noEscape: true }
+      )({ definition })
+    );
+  });
+
   createFile(
     path.join(rootDir, "lib", "language_server", "protocol", "interface.rb"),
     Handlebars.compile(